Machine for washing iron and other ores



F. FREDLY.

Ore Washer.

Patented Apr. 20, 1837.

UNITED STATES PATENT OFFICE.

FREDERICK FREDLY, OF LOGAN TOWNSHIP, PENNSYLVANIA;

MACHINE FOR WASHING IRON AND OTHER ORES.

Specification of Letters Patent No. 171, dated April 20, 1837'.

To all whom t may concern Be it known that I, FREDERICK FREDLY,

' being had to the annexed drawings of the same, making part of this specification.

This machine consists of a hollow revolving polygonal agitator or case A having a polygonal shaft B passing through its center-the shaft with the case turning in boXes supported on a frame F in an inclined positionthe case being open at the upper end for the admission of the ore, &c., and closed at the lower end, except two discharging apertures J which are covered by 1nclined spouts K for discharging the ore. The case is constructed by inserting four or more sets of arms C into the shaft, each set having as many arms as there are sides to the case, and mortising and tenoning rails D on the ends of the arms parallel with the shaft and covering the whole with iiat pieces of board E equal in number to the sides of the case-the open end of the case being surrounded with a curb Gr or projection to prevent the escape of the ore.

Narrow strips of wood H or projections are fastened on the inside of the case at the open end inclining at an angle of about 35 degrees more or less with the rails for giving the ore a direction toward the discharging end as the polygonal case revolves. Inclined strips I are placed at the other end of the case to direct the ore into the discharging spouts. At the upper end of the case on the outside, are constructed two scoops L for raising the water and discharging it into a trough or receiver and conveying it again to the lower end of the cistern 'from one end to the other.

in order to cause a current therein. The cistern M to contain the water for washing the ore is constructed with its ends vertical and its sides inclined,.having a gate at one end for drawing off the water. The frame F on which the polygonal case revolves is placed within the cistern-one end being higher than the other to .give the required inclination to the case.

Operation: The cistern being filled about 12, 24, or more inches according to the diameter of the agitator--the agitator is Vset in motion by any convenient power-the unwashed ore is put in at the upper, andis directed to the lower end by its rotary motion and the position of the inclined stripsthe ore thus washed passes through the apertures at the lower end into the inclined spouts from whence it is discharged into a receiver or upon an inclined board which conveys it away. At the same time the scoops at the upper end lift the water from the cistern and discharge it into another cistern, or into a trough 'which conveys it again into the cistern, thus causing a current The water is dis* charged through the gate at the end of the cistern. t

The invention claimed and desired to be secured by Letters Patent consists in- The use and application of the inclined strips at the ends of the polygonal case inside for directing the ore from the upper to the lower end of it and into the inclined spouts ;-the inclined spouts at the lower end ofdthe case5-and the scoops at the upper en FREDERICK FREDLY.

Witnesses:

WILLIAM T. ADAMS, WILLIAM BLAKENERY. 

